Agricultural Extension Services Q160 13 Agricultural R&D 13 Agricultural Technology 13 Economic Development: Agriculture 8 Energy 8 Environment 8 Natural Resources 8 Other Primary Products O130 8 Agricultural Policy 3 Agriculture in International Trade Q170 3 Biofuels 3 Food Policy Q180 3 Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets Q120 3 Agriculture: Aggregate Supply and Demand Analysis 2 Capacity D240 2 Capital, Total Factor, and Multifactor Productivity 2 Cost 2 Country and Industry Studies of Trade F140 2 Prices Q110 2 Production 2 Agribusiness Q130 1 Agricultural Markets and Marketing 1 Agriculture P320 1 Agriculture and Environment Q150 1 Alternative Energy Sources Q420 1 Collectives 1 Communes 1 Computable and Other Applied General Equilibrium Models D580 1 Consumer Economics: Empirical Analysis D120 1 Cooperatives 1